US PATENT SUBCLASS 303 / 67
.~.~ Preventers

Current as of: June, 1999
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303 /   HD   FLUID-PRESSURE AND ANALOGOUS BRAKE SYSTEMS

*  DD  CHARGING {7}
66  DF  .~ Control pipe {1}
67.~.~ Preventers

DEFINITION

Classification: 303/67

Means for preventing the undesirable charging of the brake-pipe.